Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 501)

Section 9A
Operator Interface
9A-34
Figure 9A.19 shows the input circuit diagram for the MTB I/O module.
Figure 9A.19
MTB I/O Module Input Circuit Diagram
Operator Panel
Push-Button MTB Panel Push-Button MTB Panel I/O Module
Common
Fiber
optics
3A AMP fuse
DC power
supply
+12V
11269-I
Switch Common
Common
+
--
CMOS
Input
Converted to
Optic Signal
Output Specifications
Table 9A.P lists the output specifications for the circuit that outputs the
operation status to the push-button MTB panel.
Table 9A.P
MTB I/O Module Output Specifications
Item Specifications Remark
A-B MTB Panel Custom MTB Panel
Number of Output Points 37 18
Modal Group Outputs 19 Non--I/O Outputs
Discrete Outputs 18 I/O Outputs
Output Type Sink/Source Totem Pole Driver Output
Output Voltage Range 9.3-13.2V dc
Output Current at ON Less than 125mA Per Each Output
Output Voltage Drop at ON Less than 1 V DC
Number of Common Points 22 Internally Connected to Power
Supply
Isolation Non-Isolated type
Connection 60 Pin Flat Cable Connector (CN52) Max. Length 1m